TY  - BOOK
AU  - Polit
TI  - Essentals of nursing research: Appraising evidence for nursing practice/Denise Polit,Cherry Titano Beck: Appraising evidence for nursing practice
SN  - 9781451176803
PY  - 2014///
CY  - Philadelphia 
PB  - Wolters Kluwer
ER  -